One UI 9 Beta 4 Features and Eligible Devices for Samsung Galaxy Phones

Samsung’s One UI 9 Beta 4 adds a redesigned Quick Panel, Perplexity AI inside Samsung Internet, and tighter privacy controls, while also fixing a long list of bugs for Galaxy S26 users.

At first glance, this doesn’t sound like the kind of update that turns your phone upside down. But that’s kind of the point. One UI 9 Beta 4 is less about shouting for attention and more about making everyday use feel smoother, smarter, and a little less annoying.

And if you’ve been wondering about One UI 9 eligible devices, that’s the practical side of this beta story. It’s not just about features. It’s also about whether your Galaxy phone or tablet is actually going to get a shot at trying them.

Introduction

Samsung has added a redesigned Quick Panel, Perplexity AI in Samsung Internet, and new privacy controls in One UI 9 Beta 4.

The real question is whether these changes feel like meaningful upgrades or just a cleaner coat of paint on top of a beta release.

That’s where this update gets interesting. Some beta builds are all polish and no substance. This one looks a bit different because it mixes interface changes with practical fixes, and that combination usually matters more than people expect. When your phone is something you use all day, little details like a less cluttered panel or a browser that doesn’t interrupt you can actually make a real difference.

What actually changes in One UI 9 Beta 4

This release is more about smarter control and cleaner behavior than flashy reinvention.

The biggest new pieces are the redesigned Quick Panel, Samsung Internet’s Ask AI side panel powered by Perplexity AI, the overlay Game Booster, the glass morphic UI treatment, and Android 17 scoped privacy.

It also matters that Samsung is pairing the new features with practical fixes, not just design changes.

Look, this is the kind of update that may not wow you in screenshots, but it can absolutely make a phone feel more refined in real life. Samsung seems to be tightening the experience from a few angles at once: how you control the device, how you browse, how you play games, and how your data is handled behind the scenes.

The Quick Panel now behaves like separate controls instead of one crowded block

Brightness, volume, and the media player are now independent and resizable, and the old blocky look has been replaced with borderless circular tiles.

That makes the panel feel less cramped and easier to tune to individual layouts.

For a lot of people, the Quick Panel is one of those places you barely think about until it starts feeling awkward. Then suddenly it’s all you notice. With this change, Samsung is basically admitting that control surfaces should be flexible, not rigid. That’s a small shift on paper, but in daily use it can make the phone feel calmer and easier to live with.

Samsung Internet gets an Ask AI panel that stays inside the page

The browser’s new side panel gives contextual summaries and direct answers without forcing a new tab or breaking split-screen flow.

It is powered by Perplexity AI, which makes this one of the most concrete feature additions in the beta.

This is one of those additions that sounds simple until you actually think about the workflow. If you’re reading an article, checking specs, or comparing something quickly, staying inside the page matters. You don’t want your browser to keep tossing you around between tabs when all you wanted was a quick answer. So, this feels less like a gimmick and more like a genuinely useful assistant tucked into the side.

Game Booster finally acts like an overlay instead of a detour

Players can adjust screen resolution, change screenshot format, switch performance profiles, and check real-time CPU metrics without leaving the game.

That is a real usability upgrade, especially for people who keep tweaking settings mid-session.

If you game on your Galaxy phone, you probably know the pain of breaking momentum just to change one setting. This update trims that friction. Instead of feeling like you’re exiting the game to manage it, Game Booster now behaves more like a proper overlay, which is exactly how it should have worked from the start.

The visual update is mostly about glass and motion

The notification shade and system panels now use a translucent glass morphic look, while the lock screen media player swaps static cards for an animated waveform that reacts to the track’s album art.

The UI feels more polished than radical, but the animation details are part of the point.

Here’s the thing: design changes don’t always need to be huge to feel real. Sometimes it’s the texture, the depth, the motion, and the way elements breathe on screen that make the difference. That seems to be Samsung’s direction here. It’s not a dramatic visual reboot, but it does make the interface feel more current and a bit more alive.

Android 17 scoped privacy changes who can see what

Apps no longer need broad access to an entire address book when a native contacts picker can limit them to specific people.

Advanced Protection Mode also adds extra defense against memory-level exploits.

This is the sort of change you may not notice right away, which is usually a good sign for privacy work. The best privacy features tend to operate quietly in the background. They narrow permissions, reduce exposure, and make it harder for apps to ask for more than they really need. It’s not flashy, but it’s the kind of thing that builds trust.

Which bugs and reliability issues Samsung says it fixed

The beta is not only about new features; it also cleans up the kind of annoyances that make a phone feel unstable.

Samsung’s own summary points to lock screen, Bluetooth, gaming, privacy display, notifications, system stability, performance, and security fixes, including the July 2026 Android security patch.

And honestly, this is where a beta can earn its keep. New features are nice, sure. But if the phone still stumbles in everyday use, the update doesn’t feel finished. These fixes suggest Samsung is trying to make One UI 9 Beta 4 behave less like a test build and more like something you can actually live with while you wait for the stable release.

This mix of fixes is a good sign because it covers both visible annoyances and invisible reliability issues. A clock that jumps around, a Bluetooth setting that acts weird in the car, or a nav bar that vanishes during a game may sound minor individually. But stack enough of those together and the whole phone feels less polished. Samsung appears to be smoothing out that rough edge here.

Which Galaxy phones and tablets are eligible for One UI 9 Beta 4

The eligible-device list is broad, but the beta is already confirmed for the Galaxy S26 family first.

Samsung’s list stretches across the Galaxy S, Z, A, M, F, and Tab lineups, with a wide range of recent devices and tablets included.

If you’re trying to figure out One UI 9 eligible devices, the easiest way to think about it is this: Samsung is starting at the newest flagships and then widening the net across a lot of recent hardware. That usually means newer phones and tablets get first access, while older models may still be in the broader rollout pool if they’re close enough in generation.

• Galaxy S26, S26+, S26 Ultra
• Galaxy S25, S25+, S25 Ultra, S25 Edge, S25 FE
• Galaxy S24, S24+, S24 Ultra, S24 FE
• Galaxy S23, S23+, S23 Ultra, S23 FE
• Galaxy Z Fold 8, Z Flip 8, Z Fold 7, Z Flip 7, Z Flip 7 FE, Z Fold 6, Z Flip 6, Z Fold 5, Z Flip 5
• Almost all Galaxy A, M, and F series phones launched between 2024 and 2026
• Galaxy Tab S11, Tab S10, and Tab S9 series tablets

That’s a pretty wide spread, especially for tablets and mid-range phones. So if you don’t own a top-tier flagship, don’t assume you’re automatically out. Samsung’s eligibility approach here suggests it wants this beta ecosystem to reach beyond the usual premium crowd, which is good news for a lot of users who want to try the latest software without buying the most expensive device.

FAQ

These questions come from the small but practical doubts people usually have after reading the feature list and device list.

Q: How do I install One UI 9 Beta 4 on my Galaxy S26?

Go to Settings > Software update > Download and install, but only if you have already joined the Samsung One UI Beta programme.

Q: Does One UI 9 Beta 4 improve security?

Yes. Samsung says it includes the July 2026 Android security patch and fixes dozens of vulnerabilities.

Q: Which devices are eligible for One UI 9 Beta 4?

The confirmed beta list starts with the Galaxy S26, S26+, and S26 Ultra, while recent S, Z, A, M, F, and Tab S models are also in scope for wider rollout.

Q: When is the public stable version of One UI 9 releasing?

Samsung’s timing points to August or September 2026 for the public stable version on prominent eligible Samsung phones.

One UI 9 Beta 4 Features and Eligible Devices: Conclusion

One UI 9 Beta 4 is best understood as a practical update: cleaner controls, better in-browser AI, stronger privacy, and a long list of fixes for Galaxy S26 users.

If your phone is on the eligibility list, this beta looks worth watching closely, especially if you care more about smoother daily use than dramatic visual change.

In other words, this isn’t the kind of release that tries to impress you with one giant headline feature. It tries to make a lot of small things better at once. And for many Samsung users, that’s actually the more valuable kind of update. If you’re on one of the supported devices, keep an eye on the rollout and decide whether the beta trade-off makes sense for you.